I assume you mean the acceleration you want to reach is 4.6 m/s^2, and it takes 10 s linearly to get there.
Then this will be an integration problem, you need to integrate the velocity in form of acceleration with respect to time.
So a = 0.46t, where a is acceleration, t is time
So your velocity at time t equals to: a*t = 0.46t^2
So at t=10, V = 0.46 * 10^2 = 46 m/s